I have a Smart Drive 085, again with a magnetic switch.
Did some testing and realised that the magnet in the door was not strong enough any more (I understand that over time they loose their power particularily if they get knocked about a bit - so dont close the lid too hard)
So I scavenged a magnet out of a little speaker (from a keyring noise maker but any little speaker will do) and have taped that to the rim of the machine over the switch. Position the magent so that the machine starts and then tape is the easiest way.
No problems having to worry about shorting wires in this case
Anon
June 2008